The product was not returned for investigation and the reported failure mode was not confirmed.Alleged failure: pump does not stop.Probable root cause: pressure sensor malfunction/out of calibration; inflow cassette/ tubing pressure sensor membrane failure; mis-inserted cassette/ tubing; motor encoder malfunction/failure (inflow and/or outflow); roller wheel assembly (inflow and/or outflow) malfunction/failure; roller wheel failure due to peristaltic tubing debris build-up; main board (all) /imx failure (cf); software malfunction; use error; system design; unwanted movement of internal components/wiring; pressure sensor is operated above linear pressure reading range (>450 mmhg for cf) (design); pump operated at least-favorable environmental conditions for extended period of time; run screen does not adequately indicate overpressure situation; miniwashmalfunction (cf); command not registered from hand control (all), footswitch (cf), sidne (fc, ap) or hermes (ap-hermes ready); excessive use of wash or turbo; slow reaction time to a quickly closed off shaver outflow at high flow rates; power failure of pump; pressure sensor stuck behind the sensor bracket; electromagnetic interference (emi) from rf communication, hf surgical instruments, esd, or power surge; insufficient cybersecurity (cf).Serial number is unknown; therefore, manufacture date can not be confirmed.The failure mode will be monitored for future reoccurrence.H3 other text : 81.
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